Crude-oil burner



J. F. DEE ET AL CRUDE OIL BURNER Filed March 17 1923 w w M I w \/E E IIIT5661 13: I

Essss Patented Dec. 2, 1924.

- STATES 1,517,496 earner @FFICE.

JOHN FRED DEE AND JOHN '1". WHITLOCK, OF CHICAGO, ILLINOIS.

CRUDE-0H4 BURNER.

Application flied March 17, 1923. Serial fie. 625,712.

To all whom it may concern:

Be it known that we, JOHN FRED .DEE and JOHN T. WHrrLooK, both citizensof the United States, and residents of the city of Chicago, in thecounty .of Cook and State of Illinois, have invented certain new anduseful Improvements in a Crude Oil Burner; and we do hereby declare thatthe following is. a full, clear, and exact de scription of the same,reference being had to the accompanying drawings and to the numerals ofreference marked thereon, which form a part of this specification.

This invention relates more particularly to an improved crude oil burneradaptable for external use in connection with no-coal furnaces and thelike and provided with means so constructed that oil entering spiralgrooves in a nozzle plug member is thoroughly broken up by air jetsentering the spiral grooves so that the air is carbureted with the oilto form a fuel which is discharged through an adjustable restrictednozzle. and lighted to direct flames into the furnace or other device toheat the same.

It is an object of this invention to provide an improved simplifiedcrude oil burner adapted to be mounted on the exterior of furnace wallhaving an opening 2 therein a furnace to direct oil flames into thefirebox of the furnace.

It is also an object of the invention 'to provide a crude oil burnerwherein a spirally grooved passaged plug is mounted in the nozzle of thedevice to cause air passing through the plug to be thoroughly carburetedwith crude oil passing through the spiral grooves of theplug. 7

It is a further object of the invention to provide a crude oil 'burnerwherein a nozzle plug is provided having spiral oil grooves having airpassages communicating therewith to facilitate thorough mixing of theoil and air passing through the nozzle of the burner.

It is furthermore an object of this invention to provide a crude oilburner wherein the nozzle is provided with an adjustable tip.

It is an important object of the invention to provide a crude oil burnerof simple and effective construction wherein crude oil passing throughthe burner is conducted through spiral grooves of a nozzle plug memberand is thoroughl disintegrated by means of currents 0 comthe :inner endof the pressed air which are directed into said spiral grooves to mixwith the oil and provide a properly carburetedfuel which when burningwill not act to corrode the burner parts.

Other and further important objects of this invention will be apparentfrom the disclosures in the specification and the accompanying drawings.

The invention (in a preferred form) is illustrated in the drawings andheroin- Figure 2 is an enlarged longitudinal sec tion of the burner withparts in elevation.

Figure 3 is an enlarged transverse sec tion taken on line 3--3 of Figure2..

Figure 4 is an enlarged longitudinal sec tional view of the burnernozzle plug, tak en on a line centrally through the spiral groovestherein. 7

As shown on the drawings: The reference numeral 1 indicates a closed bya centrally apertured closure plate 3. I

The crude oil burner comprises ametal cylindrical housing 4 having anenlarged head 5 integrally formed ,on one end thereof. Integrally formedon the end of the head-5 is an externally threaded ring h flange 6spaced between the inner and outer peripheries of said head. Anapertured disk 7 is seated within the head flange 6 and has threadedtherein one end of :2. pi e or tube 8 which projects longitudina ythrough the head 5 and housing 4. The other end of the tube 8 hasthreaded thereon a spider or plu 9 which fits in the end of a housing 4.e plug 9 is provided with; a conical valve seat 10 and has a pluralityof lugs 11 integrally formed on the end thereof and flush with the endof the housing.- The plug 9 is provided with a longitudinal air passage12 connecting the interior of the housing 4 with the space between theouter end of the plug 9 and plug 30. An air intake opening is provi edin the bottom of the head 5 and has threaded therein one end of an airsupply pipe 13, the other end of which is connected with any suitablesource of compressed air.

Engaged against the end of the head flange G and against the disk 7 andtube 8' is a packing disk 14 held in place by means of a closure cap orhead 15, one end of which is recessed and internally threaded to permitthe cap 15 to be threaded onto the flange 6 and against the packing disk14. The cap 15 is provided with an L-shaped oil intake passage 16, theinner arm of which communicates with the oil tube 8. The other arm ofthe oil intake passage 16 opens through the bottom of the cap 15 and isinternally threaded to receive the threaded end of a crude oil supply orfeed pipe 17. The oil supply pipe 17 is connected with an oil supplytank (not shown).

A recessed nipple or boss 18 is formed on the cap 15 and is externallythreaded to receive a stufling box or nut cap 19 which holds a packing20 within said nip le around a valve stem or rod 21. The valve stem 21projects through the cap 15 and through the tube 8. A threaded portion22 of the valve stem 21 has threaded engagement with the cap 15 andpermits the valve stem to be adjusted by means of a knurled handle orknob 23 fixed on the outer end of the valve stem. Rotatably engaged onthe inner end of the valve stem 21 is a frustumshaped valve 24 adaptedto coact with the valve seat 10, to control the flow of crude oil fromthe tube 8. Attention is called to the fact that the end of the valve 24ends short of the valve seat 10 leaving a small space at the outer endof said valve seat to permit a pocket of oil to accumulate there to forman oil seal which prevents back firing into the oil tube 8.

Threaded onto the end of the housing 4 is a collar 25 of a tapered orconical nozzle 26 having a restricted discharge passage 27. The end ofthe nozzle 26 is externally threaded and has adjustably engaged thereona flaring discharge tip or mouth piece 28 having a flaring opening. 29therein which regis ers with the restricted passage 27.

Placed within the nozzle 26 is a carbureter plug 30 of conical shape andhaving two oppositely positioned spiral, grooves 31 extending the lengthof said plug. The enlarged end of the plug 30 is provided with a curvedor concave recess 32. The spiral grooves 31 divide the plug into twosections. Each half or section of the plug is provided with a pluralityof air passages 33 which open into the recess 32 and also communicatethrough one wall of one of the grooves 31 as illustrated in Figure 4.

The operation is as follows:

The crude oil burner is mounted on the exterior of the furnace 1 withthe nozzle only projecting through the opening in the furnace closureplate 3, as illustrated in Figure 1. The pipe 13 is connected with asource of compressed air, while the pipe 17 is connected with a crudeoil supply tank or pump.

\Vhen the burner is assembled the plug 9 is set so that the lugs 11 restagainst the enlarged end of the carbureter plug 30 in the positionillustrated in Figure 3.

The valve 24 is rotatably mounted on the valve stem to permit the valveto seat properly in the valve seat. The valve is opened by turning thehandle 23, thereby permitting crude oil to be pumped through the pipe 17and the passage 16 through the tube 8 and the valve seat opening in thep ug 9. The crude oil is thus forced against the enlarged end of theplug 30 and into the spiral oil grooves 31. As the oil is directed intothe spiral grooves 31 it is directed against the convex walls thereof.

The compressed air from the pipe 13 enters the housing 4 and flowsthrough the plug passage 12 into the plug recess 32 and through the airpassages 33, thereby directing the flow of air into the grooves 31 andagainst the convex walls of said grooves.

The air thus acts on the oil tending to disintegrate the same so thatthe air will become thoroughly carbureted with the oil to produce a fuelwhich will flow from the ends of the spiral grooves 31 into and throughthe restricted nozzle outlet passage 27 to be discharged through theburner tip 28 into the furnace. The projected fuel is of course lightedto provide the flames which act to heat the furnace. The tip 28 may beadjusted on the nozzle to regulate the size and form of the flamesdirected into the furnace. The valve seat 10 in the plug 9 is longerthan the valve 24 and affords a pocket to the outside of the end of thevalve. Oil from the tube 8 passing around the valve fills the pocketand-acts to eliminate all possibility of back fire which is one of'themain objections to other types of crude oil burners.

We are aware that numerous details of construction may be varied througha wide range without departing from the principles of this invention,and we therefore do not purpose limiting the patent granted otherwisethan necessitated by the prior art.

We claim as our invention:

1. A crude oil burner comprising a hone-- ing, a disk closing one end ofsaid housing, a plug closing the other end of the housing and having avalve seat and an air passage therein, a tube connecting said disk andplug, avalve stem projecting into said tube, a valve on said stemadapted to coact with said plug valve seat to control the flow of oil, anozzle secured on the end of said housing, and a carbureter plug in saidnozzle having grooves and passages therein.

2. A crude oil burner comprising a housing having an air chambertherein, a disk closing one end of said housing, a plug closing theother end of the housing and having a valve. seat and an air passagetherein, a tube connecting said disk and plug, a valve stem projectinginto said tube, a valve rotatable on said stem to coact with said valveseat to control the flow of oil from said tube, a nozzle on the end ofsaid housing, a tip adjustably mounted on the end of said nozzle, and acarbureter plug in said nozzle having spiral passages and straightpassages communicating with each other to permit the air to bethoroughly carbureted with the oil before being discharged through saidnozzle and tip.

3. A crude oil burner comprising a housing, a nozzle fixed thereon, atip adjustably mounted on said nozzle, a plug in said nozzlecomplemental to the shape of the interior of the nozzle, said plughaving spiral grooves and a recess therein connected by passages, apassaged valve seat member in one end of said housing, spaced lugs onsaid member contacting said plug, a tube in said housing secured to saidmember, a pipe connected with said housing for admitting air thereto, adisk fixed on said tube and closing the other end of said housing, apacking positioned against said disk, a cap secured on one end of saidhousing to hold said packing and disk in position, said cap having apassage therein connecting upwith said tube, an oil supply pi econnected with said cap passage, a va ve stem having threaded engagementwith said cap and projecting into said tube, a valve rotatable on theinner end of said stem adapted to coact with said valve seat member, and,a handle on said stem to facilitate rotation thereof to adjust thevalve.

4. A crude oil burner comprising a housing, a control valve therein, a'nozzle secured to said housing, and a plu in said nozzle havingcommunicating spira grooves,

- a recessand passages therein, said grooves and passages leading fromsaid recess,

5. An oil burner comprising a housing,

means for supplying oil and air thereto, a

valve in said housing for controlling the flow of the oil from saidhousing, a nozzle fixed on said housing, and a tapered plug in saidnozzle having spiral grooves therein opening through the periphery ofthe nozzle, said plug also having a recess in one end thereof andpassages connecting said recess den with the grooves, and a valvemechanism in the. burner for controlling the flow of oil to said pluggrooves.

8. In an oil burner the combination with a housin oil and air supplypipes connected with the housing, a nozzle on said housing, acarbureting member in said nozzle, a tube in said housing connected tore ceive oil from the oil supply pipe, an air supply pipe connected withthe housing to supply air thereto, a valve seat member in said housingconnected with the tube and contacting said carbureting member, saidvalve seat member havmg an an passage.

therein connecting the interior of the housing with said nozzle, and avalve coacting with said valve seat member to control the supply of oilfrom the tube to said carbureting' member. s

In testimony whereof, we have hereunto subscribed our names in thepresence of two subscribing witnesses.

J. FRED DEE. JOHN T. WHITLOGK, Witnesses:

FRED E. Panama, OSCAR HaRrMANN.

